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<div class="title">src/inputParser/LRInputParser.java</div>  </div>
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<div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="keyword">package </span>inputParser;
<a name="l00002"></a>00002 
<a name="l00003"></a>00003 
<a name="l00004"></a>00004 <span class="keyword">import</span> java.io.BufferedReader;
<a name="l00005"></a>00005 <span class="keyword">import</span> java.io.FileReader;
<a name="l00006"></a>00006 <span class="keyword">import</span> java.io.IOException;
<a name="l00007"></a>00007 <span class="keyword">import</span> java.util.Hashtable;
<a name="l00008"></a>00008 <span class="keyword">import</span> java.util.LinkedList;
<a name="l00009"></a>00009 <span class="keyword">import</span> java.util.List;
<a name="l00010"></a>00010 
<a name="l00011"></a>00011 <span class="keyword">import</span> org.apache.log4j.Logger;
<a name="l00012"></a>00012 
<a name="l00013"></a>00013 <span class="keyword">import</span> contextFree.grammar.IGrammar;
<a name="l00014"></a>00014 
<a name="l00015"></a>00015 <span class="keyword">import</span> parserProgram.ParserProgram;
<a name="l00016"></a>00016  
<a name="l00021"></a><a class="code" href="classinput_parser_1_1_l_r_input_parser.html">00021</a> <span class="keyword">public</span> <span class="keyword">class </span><a class="code" href="classinput_parser_1_1_l_r_input_parser.html" title="Parse a txt file with action table, goto table and grammar in one line format (*.1l).">LRInputParser</a> <span class="keyword">extends</span> <a class="code" href="classinput_parser_1_1_abstract_input_parser.html">AbstractInputParser</a> {
<a name="l00022"></a>00022         <span class="keyword">static</span> Logger logger = Logger.getLogger(<a class="code" href="classinput_parser_1_1_l_r_input_parser.html" title="Parse a txt file with action table, goto table and grammar in one line format (*.1l).">LRInputParser</a>.class.getName());
<a name="l00023"></a>00023         
<a name="l00024"></a>00024         <span class="keyword">private</span> String input;
<a name="l00025"></a>00025 
<a name="l00026"></a>00026         <span class="keyword">public</span> <a class="code" href="classinput_parser_1_1_l_r_input_parser.html" title="Parse a txt file with action table, goto table and grammar in one line format (*.1l).">LRInputParser</a>(){
<a name="l00027"></a>00027                 input=<span class="stringliteral">&quot;&quot;</span>;
<a name="l00028"></a>00028         }
<a name="l00029"></a>00029         <span class="keyword">public</span> <a class="code" href="classinput_parser_1_1_l_r_input_parser.html" title="Parse a txt file with action table, goto table and grammar in one line format (*.1l).">LRInputParser</a>(String in) {
<a name="l00030"></a>00030                 this.input=in;
<a name="l00031"></a>00031         }
<a name="l00032"></a>00032 
<a name="l00038"></a>00038         @Override
<a name="l00039"></a><a class="code" href="classinput_parser_1_1_l_r_input_parser.html#ad81d1510d9b12b4b8b2dedbe117e88c1">00039</a>         <span class="keyword">public</span> <a class="code" href="classparser_program_1_1_parser_program.html" title="This class is responsible of the parsing of input string, and stack parsing creation.">ParserProgram</a> <a class="code" href="classinput_parser_1_1_l_r_input_parser.html#ad81d1510d9b12b4b8b2dedbe117e88c1">parse</a>() throws Exception {
<a name="l00040"></a>00040                 Hashtable&lt;String,List&lt;String&gt;&gt; actionTable = <span class="keyword">new</span> Hashtable&lt;String, List&lt;String&gt;&gt;();
<a name="l00041"></a>00041                 Hashtable&lt;String,List&lt;String&gt;&gt; gotoTable = <span class="keyword">new</span> Hashtable&lt;String, List&lt;String&gt;&gt;();
<a name="l00042"></a>00042                 <a class="code" href="interfacecontext_free_1_1grammar_1_1_i_grammar.html" title="Grammar Interface.">IGrammar</a> grammar = null;
<a name="l00043"></a>00043                 <span class="keywordflow">try</span>{
<a name="l00044"></a>00044                         BufferedReader f
<a name="l00045"></a>00045                            = <span class="keyword">new</span> BufferedReader(<span class="keyword">new</span> FileReader(this.input));
<a name="l00046"></a>00046                         String in;
<a name="l00047"></a>00047                         <span class="keywordflow">while</span>((in=f.readLine())!=null){
<a name="l00048"></a>00048                                 <span class="keywordflow">if</span>(in.contains(<span class="stringliteral">&quot;Tabella ACTION&quot;</span>)){
<a name="l00049"></a>00049                                         <a class="code" href="classinput_parser_1_1_l_r_input_parser.html#a1ade16089652dc354434e1ddb1769e96" title="read the table in the first part of the file and store it in an hashtable with simbol as key and a li...">readTable</a>(f,actionTable);
<a name="l00050"></a>00050                                 }
<a name="l00051"></a>00051                                 <span class="keywordflow">else</span> <span class="keywordflow">if</span>(in.contains(<span class="stringliteral">&quot;Tabella GOTO&quot;</span>)){
<a name="l00052"></a>00052                                         <a class="code" href="classinput_parser_1_1_l_r_input_parser.html#a1ade16089652dc354434e1ddb1769e96" title="read the table in the first part of the file and store it in an hashtable with simbol as key and a li...">readTable</a>(f,gotoTable);
<a name="l00053"></a>00053                                 }
<a name="l00054"></a>00054                                 <span class="keywordflow">else</span> <span class="keywordflow">if</span>(in.contains(<span class="stringliteral">&quot;Grammatica&quot;</span>)){
<a name="l00055"></a>00055                                         in=f.readLine();
<a name="l00056"></a>00056                                         grammar = <span class="keyword">new</span> <a class="code" href="classinput_parser_1_1_single_line_input_parser.html" title="Parse a single line grammar format.">SingleLineInputParser</a>().<a class="code" href="classinput_parser_1_1_single_line_input_parser.html#a90641140f8686fc97fd40b72beccf0a3" title="Execute the parse operation on the object.">parseString</a>(in);
<a name="l00057"></a>00057                                 }
<a name="l00058"></a>00058                         }       
<a name="l00059"></a>00059                         f.close();
<a name="l00060"></a>00060                         <span class="keywordflow">return</span> <span class="keyword">new</span> <a class="code" href="classparser_program_1_1_parser_program.html" title="This class is responsible of the parsing of input string, and stack parsing creation.">ParserProgram</a>(grammar, actionTable,gotoTable);
<a name="l00061"></a>00061                         <span class="comment">//es.     actionTable.get(&quot;*&quot;).get(8));                 recupera lo stato 8 del simbolo &quot;*&quot; nella tabella action</span>
<a name="l00062"></a>00062                 }<span class="keywordflow">catch</span>(IOException e){
<a name="l00063"></a>00063                         logger.error(<span class="stringliteral">&quot;Error in file read operation&quot;</span>,e);
<a name="l00064"></a>00064                 }
<a name="l00065"></a>00065                 <span class="keywordflow">return</span> null;
<a name="l00066"></a>00066         }
<a name="l00067"></a>00067         
<a name="l00077"></a><a class="code" href="classinput_parser_1_1_l_r_input_parser.html#a1ade16089652dc354434e1ddb1769e96">00077</a>         <span class="keyword">private</span> <span class="keywordtype">void</span> <a class="code" href="classinput_parser_1_1_l_r_input_parser.html#a1ade16089652dc354434e1ddb1769e96" title="read the table in the first part of the file and store it in an hashtable with simbol as key and a li...">readTable</a>(BufferedReader f, Hashtable&lt;String, List&lt;String&gt;&gt; table) throws IOException {
<a name="l00078"></a>00078                 String in=f.readLine();
<a name="l00079"></a>00079                 String []simbol =  in.split(<span class="stringliteral">&quot;\t&quot;</span>);
<a name="l00080"></a>00080                 <span class="keywordflow">for</span>(<span class="keywordtype">int</span> i=1;i&lt;simbol.length;i++) table.put(simbol[i], <span class="keyword">new</span> LinkedList&lt;String&gt;());
<a name="l00081"></a>00081                 <span class="keywordflow">while</span>(<span class="keyword">true</span>){
<a name="l00082"></a>00082                         in = f.readLine();
<a name="l00083"></a>00083                         String[] temp =  in.split(<span class="stringliteral">&quot;\t&quot;</span>);
<a name="l00084"></a>00084                         <span class="keywordflow">if</span>(temp.length!=simbol.length) <span class="keywordflow">break</span>;
<a name="l00085"></a>00085                         <span class="keywordflow">for</span>(<span class="keywordtype">int</span> i = 1; i&lt;temp.length;i++)
<a name="l00086"></a>00086                                 table.get(simbol[i]).add(temp[i]);
<a name="l00087"></a>00087                 }       
<a name="l00088"></a>00088         }
<a name="l00089"></a>00089 }
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